- Source: 2015 Basque foral elections
The 2015 Basque foral elections were held on Sunday, 24 May 2015, to elect the 10th General Assemblies of Álava, Biscay and Gipuzkoa. All 153 seats in the three General Assemblies were up for election. The elections were held simultaneously with regional elections in thirteen autonomous communities and local elections all throughout Spain.
Opinion polls
Overall
Foral deputation control
The following table lists party control in the foral deputations. Gains for a party are displayed with the cell's background shaded in that party's colour.